Latch for windows



Nov. 7, 1950 H. L. HAWKll l$,;R 2,529,020

LATCH FOR WINDOWS 3 Sheets-Sheet 1 Filed F b. 11-, 1948 Henry L. Hawkin$', 5r.

IN V EN TOR.

Nov. 7, 1950 H. L. HAWKINS, SR

LATCH FOR WINDOWS 3 Sheets-Sheet 3 HUHH .I HHI I I Mn N I mw 0m R mm vm lair! Henry L Hawkins, Sn

Filed Feb. 11. 1948 Patented Nov. 7, 1950 LATCH FOR WINDOWS Henry L. Hawkins, Sr., Gladys, Va.', assignor of twenty per cent to Henry L. Hawkins, Jr., and twenty per cent to Richard L. Hawkins, both of Campbell, Va.

Application February 11, 1948, Serial No. 7,572

This invention relates generally to windows, and more particularly to a window construction having a pair of vertically sliding sashes and the window frame having side rails in which are incorporated means co-operating with other means carried by the sashes for locking the sashes in place.

A primary object of this invention is to provide means for locking vertically sliding window sashes in a variety of positions, ventilating spaces being left at either the top or bottom or at both top and bottom of the window, as well as providing for safe locking of both sashes in closed position.

Another object of this invention is to provide window locking means in which the various elements are located so as to preclude tampering with the locking means from outside the window. I

Still'another object of this invention is to provide safe and adequate locking means'for windows with a minimum of equipment and with the major portions of this equipment hidden from view.

Another object of this invention is to provide window'locking means which will not readily become inoperative by reason of non-use, changing weather conditions;-or other conditions affecting other types of window locks.

And a last object to be mentioned specifically is to provide a ventilating window and lock structure in which the elements are relatively inexpensive and practicable to manufacture, which is extremely simple, safe and convenient to use, and which will give generally efiicient and durable service.

With these objects definitely inview, this invention resides in certain novel features of construction, combination and arrangement-of elements and portions as will be hereinafter described in the specification, particularly pointed out in the appended claims, and illustrated in the accompanying drawings which form a material part of this application, and in which:

Figure 1 is a side elevational view of a window construction having this invention incorporated therewith;

Figure 2 is a vertical transverse sectional view, taken on a plane through the line 2-2 in Fig.- ure .1;-.' I v Figure 3 is a similar view but showing the sashes in positions substantially as illustrated in Figure 1;

Figure 4 is an enlarged fragmentary detail 5 Claims. (Cl. 29233) view of horizontal sectional character, taken substantially on the line 4-4 in Figure 1;

Figure 5 is a vertical transverse sectional view, taken substantially on a line 5-5 in Figure 1;

Figure 6 is a horizontal sectional view, taken on the line 66 of Figure 3;

Figure '7 is a side elevational view of portions of the window frame and the adjacent portions of the sashes with this invention incorporated therewith and this figure may be read in connection with Figure 6;

Figure 8 is a horizontal sectional view, taken on a plane through the line 8-8 in Figure '7; and

Figure 9 is a three-dimensional view of a fitting which is inserted into recesses through the frame side rails, the plungers and springs and the pins used to secure the plungers on the rocker bar being deleted from the fitting in the interest of clarity.

Similar characters of reference designate similar or identical elements and portions throughout the specification and throughout the several views of the drawings.

Referring now to the drawings in detail, this invention comprehends provision of a window frame having a sill ID, a header [2 and frame side rails I l. The window frame will also include waling strips it and parting strips l8, and for purposes of illustration the construction of the window frame and sashes will be considered as substantially standard as used with vertically sliding double sashes of the type in which counterbalancing weights or springs are not employed. The upper sash indicated by the numeral 20 and the lower sash indicated at 22 are also conventional and the lower sash 22 has a top rail 24, while each of the sashes has side rails 26 which will be termed sash side rails.

The lower portions of the frame side rails may be lined with light gage metal straps 28 held in place by small screws 31!, and sash anti-rattling devices illustrated in detail in Figure 4 may be incorporated with each of the sashes. The bottom rails 32 of each of the sashes are suitably apertured to receive a socket member 34 having a reduced portion 36 adapted to receive a guide pin or plunger 38 havingan enlarged head 4!] adapted to engage frictionally the light metal straps 28, there being provided coile-dsprings 42 compressed between the head All and washers 43 encircling the pin or plunger 38 and seated upon the shoulder 44 between the major portion of the socket member 34 and the reduced portion thereof 36. This construction will readily be understood to provide for a certain degree of stability of the sashes in the frame side rails, as Well as functioning as anti-rattling devices.

Each of the frame side rails is recessed to receive fittings represented in Figure 9, these recesses and fittings being in each side rail and being spaced one above the other as will be clearly understood from an inspection of Figures 1, 2 and 3. Each fitting includes an attachment plate 48 apertured to receive attachin screws 48 to hold the fitting in flush relationship with the inside of the frame side rails. Normally disposed to and integral with the attachment plate 46 are a pair of parallel tubes 58 and these tubes may be also integral with anothe plate 52 having a pedestal portion 54 on which is pivotally mounted as at 56 a rocker arm 58. Each end of the rocker arm 58 frictionally contacts the enlarged head 62 on the end of each of a pair of plungers 6 and 66 adapted to reciprocate within the tubes 50, and a spring 88 is compressed between the head 62 and the adjacent end of the corresponding tube 59. s In the top rail 24 of one of the sashes, a longitudinal recess 78 is provided, the recess being covered by an elongated plate H and guide bushings T2 are inserted in this channel as best illustratedin Figure 8, while the pair of inflexible bars 74 are 'slidably mounted within these guide bushings extending from adjacent the center of the top rail 24 to the sides of the sash. The lengths of these bars M are carefully regulated with respect to a pair of connecting links it and a crank disk T8 with which the bars are operatively connected, the plate 78 bein rigidly fixed on a vertical standard 80 and the standard is journalled at the bottom in an attachment plate 82 screwed or otherwise affixed to the top rail 2 while the upper end of the standard 88 is transversely apertured to receive a pin 84 whereby a thumb piece 86 is secured thereto to facilitate manipulation of the plate '58 and indirectly to facilitate the simultaneous movement of the bars 74. When the thumb piece as is turned in one direction, the bars M will be in positions indicated in Figure 6-8, that is, extended so that the outer ends of the bars M will contact the plungers 6'3 pushing the same outwardly against the action of the opposing sprin 68 associated with the other plungers 88, so that the latter plungers will be moved into positions indicated in the figures with the inner ends of the plungers received in recesses 88 in the sash 2E. The apertures mentioned immediately above will be formed in the sash side rails and/or in the sash bottom rail 32, the Figures 1, 6, 7 and 8 illustrating positioning of the same in the sash side rails-only, and these recesses will preferably be lined with the metal tubes 86 as best indicated in Figure 8. It will be clear that when the sash 20 is thus locked. the sash 22 will also be locked by the outer ends of the bars it which will be inserted in the tubes 64. The Sashes 2i} and 22 can be locked in a plurality of verticall spaced positions by the plungers 86 and bars 1'3, respectively, since a plurality of tubes 58 are provided in similarly vertically spaced relationship in each of said side rails. The plungers 86 are normally disposed in positions out of engagement with the pockets 88 except when the thumb piece 88 is turned so as to push the bars 14 outwardly.

The positioning of the recesses indicated by the reference character 88 in Figure 8 and the number of these recesses will determine to a large extent the heights at which the sash in question may be locked.

The operation of this invention will be clearly understood from the foregoing description of the mechanical details thereof, taken in connection with the above recitation of the objects sought to be achieved by this invention. In recapitulation, it need only be added that certain details of the elements of this invention and the proportionment thereof are matters of individual preferment and mechanical expediency, and this invention should be thought of as limited only by a proper interpretation of the terms used in the subjoined claims.

Having described the invention, what is claimed as new is:

1. A latch for a window construction comprising a pair of sashes having side portions and a window frame, including frame side rails having opposing and vertically spaced recesses in each side rail, a pair of tubes in each of said recesses arranged transversely of the sashes and spaced to register with the sashes, a pair of plungers in said tubes, a rocker arm mounted in said recess to engage corresponding ends of said plungers, springs arranged to bias said plungers into nonengaging positions with respect to said side portions, sockets in said sash side portions to receive terminal portions of one of each pair of plungers, and means carried by one of said sashes for actuating the other of said plungers and the rocker arm associated therewith to shift said one of each pair of plungers into engaging posirelative to said side portions.

2. A latch for a window construction comprising a pair of sashes having side portions and a window frame, including frame side rails having opposing and vertically spaced recesses in each side rail, pair of tubes in each of said recesses arranged transversely of the sashes and spaced to register with the sashes, a pair of plungers in said tubes, a rocker arm mounted in said recess to engage corresponding ends of said plungers, springs arranged to bias said plungers into nonengaging positions with respect to said side portions, sockets in said sash side portions to re ceive terminal portions of one of each pair of plungers, and means carriedby one of said sashes for actuating the other of said plungers and the rocker arm associated therewith to shift said one of each pair of plungers into engaging position relative to said side portions, said means including a bar arranged for transverse sliding movement relative to said one of said sashes, and a manually operable crank disc connected therewith.

3. A latch for a Window construction comprising a pair of sashes having side portions and a Window frame, includirn frame side rails having opposing and vertically spaced recesses in each side rail, a pair of tubes in each of said recesses arranged transversely of the sashes and spaced to register with the sashes, a pair of plungers in said tubes, a rocker arm mounted in said reess to engage corresponding ends of said plungers, springs arranged to bias said plungers into non engaging positions with respect to said side portions, sockets in said sash side portions to receive terminal portions of one of each pair of plungers, and means carried by one of said sashes for actuating the other of said plungers and the rocker arm associated therewith to shift said one of each pair of plungers into engaging position relative to said side portions, each pair of said tubes being connected to a plate, said recesses arranged transversely of the sashes and spaced to register with the sashes, a, pair of plungers in said tubes, a rocker arm mounted in said recess to engage corresponding ends of said plungers, springs arranged to bias said plungers into non-engaging positions with respect to said side portions, sockets in said sash side portions to receive terminal portions of one of each pair of plungers, and means carried by one of said sashes for actuating the other of said plungers and the rocker arm associated therewith to shift said one of each pair of plungers into engagin position relative to said side portions, the second of said sashes having said sockets therein, eachof said frame side rails having a pair of tubes, a pair of plungers and a coacting rocker arm therein, said means including bars leading to each side of said one sash, and a single manually operable crank disc on said one sash to shift said bars longitudinally.

5. A latch for a window construction comprising a pair of sashes having side portions and a window frame, including frame side rails having recesses therein, a pair of tubes in each of said recesses arranged transversely of the sashes and spaced to register with the sashes, a, pair of plungers in said tubes, a rocker arm mounted in said recess to engage corresponding ends of said plungers, springs arranged to bias said plungers into non-engaging positions with respect to said side portions, sockets in said sash side portions to receive terminal portions of one of each pair of plungers, and means carried by one of said sashes for actuating the other of said plungers and the rocker arm associated therewith to shift said one of each pair of plungers into engaging position relative to said side portions, the second of said sashes having said sockets therein, each of said frame side rails having a pair of tubes, a pair of plungers and a coacting rocker arm therein, said means including bars leading to each side of said one sash, and a single manually operable crank disc on said one sash to shift said bars longitudinally, said sashes comprising an upper sash and a lower sash vertically slidable in horizontally spaced channels in said frame, said tubes being spaced horizontally and said rocker arms being pivoted on vertical axes, said plungers and said sockets being spaced along said side rails, whereby the sashes may be secured against relative movement at a plurality of positions.

HENRY L. HAWKINS, SR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 295,530 Farquhar Mar. 25, 1884 2,077,135 Walker Apr. 13, 1937 FOREIGN PATENTS Number Country Date 1,439 Great Britain Jan. 15, 1884 

